A·lad·din's Cave /əˌlædənz ˈkeɪv, əˌlædɪnz ˈkeɪv/ noun
an Aladdin's Cave a place that contains a large variety of interesting, valuable, or exciting things. This expression comes from the story of Aladdin in The Arabian Nights:
Her apartment is an Aladdin's Cave of antiques, old books, and fine paintings.

[TahlilGaran] Dictionary of Contemporary English ▲